Home / 815,614.83-1,223,434.55-283,152.78

Finding the Fourth Proportional to 815,614.83, 1,223,434.55 and 283,152.78

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Solution

The fourth proportional to 815,614.83, 1,223,434.55 and 283,152.78 is: 424,733.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,614.83 : 1,223,434.55 = 283,152.78 : x
  2. Step 2: Convert to fraction form
    815,614.83/1,223,434.55 = 283,152.78/x
  3. Step 3: Cross multiply
    815,614.83x = 1,223,434.55 × 283,152.78
  4. Step 4: Simplify right side
    815,614.83x = 346,418,893,980.55
  5. Step 5: Solve for x
    x = 346,418,893,980.55/815,614.83
  6. Step 6: Final answer
    x = 424,733.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.